A.I.Bileush, M.G.Bugaj, V.L.Fridrihson, V.V.Krivonog Research of chemical suffusion sandy and loamy soils and its influence on the stability of bases of engineering structures |
Applied hydromechanics, Vol. 16 (88) ¹ 2, (2014) |
| Presented are the results of experimental research on the kinetics of dissolution and salt removal from non-cohesive soil. Experimental research show relationship between mineral dissolution coefficient and speed of filtration and starting volume content of ground salt. Also presented are the results of tests of strength of saline soils with torsion device. It was determined that ground coat rigidity significantly decreases before the development of subsoil erosion and salt erosion only as a result of ground coat wetness increase. Such a rigidity decrease depending on starting ground coat rigidity can be more than 50%. It is proven that the chemical suffusion leads to changes in micro-aggregate soil structure, which causes a decrease in their strength in the shear zone. Under natural conditions, this phenomenon leads to a decrease in the stability of the foundations of engineering structures, slopes, dams and artificial slopes. |
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KEY WORDS: chemical suffusion, dissolution, salt removal, ground coat |
| TEXT LANGUAGE: Ukrainian |